Spectrometer with a relay lightpipe
US9885655B2 · kind B2 · utility
2Cited by
29References
38Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 12, 2015 |
| Grant date | Feb 6, 2018 |
| Priority date | — |
| Expiry date | Dec 25, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A lightpipe is coupled to a spectrometer based on a laterally variable optical filter. The lightpipe may be used for both guiding the illuminating light towards a sample and collecting light reflected or emitted by the sample upon illumination, for spectral measurements at a distance from the sample afforded by the lightpipe. The lightpipe may include a slab of homogeneous transparent material for unconstrained bidirectional propagation of light in bulk of the material. The lightpipe may be solid, hollow, or sectioned for separate guiding of the illuminating and the reflected light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.